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SECURITY REPORT · EXTENSHI SCAN

Container Vertical Tabs

Firefox extension·by rysyd
91
/ 100 SAFETY SCORE
EXCELLENT
Looks clean. No meaningful risks detected in this scan.

Automated analysis of publicly available code — not a professional security audit. It may produce false positives and does not prove an extension is unsafe or safe. Treat it as one signal among many. Disclaimer · Report an issue

How it ranks

Container Vertical Tabs's safety score vs every other extension we've scanned
Globally
65%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 402,632 extensions
In Tabs
38%of tabs extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 12,562 tabs extensions
Findings
5
median 4Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
4
median 3Declared in manifest
Active users
2
median 2vs category median

Findings breakdown

Automated security signal · 5 distinct issues across 6 severities
5
distinct issues
detected

Permissions requested

2 risky permissions of 4 total
2 high-risk permissions require attention
This extension requests 4 permissions in total. 2 of them grant broad capabilities that are worth a careful look.
High
View open tabs

Can see URLs and titles of all open tabs

High
Access browser cookies

Can read and modify cookies, potentially accessing login sessions

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Container tabs

Can manage Firefox container tabs and their identities

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Scan performed by extenshi.io · Aug 1, 2026
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